Rally — Whenever Kalastria Healer or another Ally enters the battlefield under your control, each opponent loses 1 life and you gain 1 life.

Whenever you gain life, Kalastria Nightwatch gains flying until end of turn.

Converge — Kaleidoscorch deals X damage to any target, where X is the number of colors of mana spent to cast this spell.

Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

, : Destroy target creature. If that creature dies this way, create a black Vampire creature token. Its power is equal to that creature's power and its toughness is equal to that creature's toughness.

Haste (This creature can attack and as soon as it comes under your control.)

: Kamahl, Pit Fighter deals 3 damage to any target.

Kamahl's Sledge deals 4 damage to target creature.

Threshold — If seven or more cards are in your graveyard, instead Kamahl's Sledge deals 4 damage to that creature and 4 damage to that creature's controller.

Whenever one or more tokens enter the battlefield under your opponents' control, for each of them, create a tapped token that's a copy of it. This ability triggers only once each turn.

Whenever one or more tokens enter the battlefield under your control, each opponent loses 1 life and you gain 1 life.

Whenever a modified creature you control attacks, exile the top card of your library. You may play that card this turn. (Equipment, Auras you control, and counters are modifications.)

Whenever you cast a spell from exile, put a +1/+1 counter on target creature you control.

Whenever you cast a Spirit or Arcane spell, target creature can't block this turn.

Flying

Soulshift 5 (When this creature dies, you may return target Spirit card with mana value 5 or less from your graveyard to your hand.)

When Kami of Restless Shadows enters the battlefield, choose one —

• Return up to one target Ninja or Rogue creature card from your graveyard to your hand.

• Put target creature card from your graveyard on top of your library.

Flying

Whenever you cast a Spirit or Arcane spell, target creature gains fear until end of turn. (It can't be blocked except by artifact creatures and/or black creatures.)

Whenever you attack, target attacking creature can't be blocked this turn. It connives. Then choose another attacking creature with lesser power. That creature gains double strike until end of turn. (To have a creature connive, draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on that creature.)

Whenever you attack a player, tap target creature that player controls and goad it. (Until your next turn, that creature attacks each combat if able and attacks a player other than you if able.)

Whenever an opponent attacks another one of your opponents, you and the attacking player each draw a card and lose 1 life.

When Kardur, Doomscourge enters the battlefield, until your next turn, creatures your opponents control attack each combat if able and attack a player other than you if able.

Whenever an attacking creature dies, each opponent loses 1 life and you gain 1 life.

When Karfell Kennel-Master enters the battlefield, up to two target creatures each get +1/+0 and gain indestructible until end of turn. (Damage and effects that say "destroy" don't destroy them.)

As long as you control a Dragon, Kargan Dragonrider has flying. (It can't be blocked except by creatures with flying or reach.)

Other Warriors you control get +1/+1.

Gain control of target creature or Vehicle until end of turn. Untap it. It gains haste until end of turn.

You may cast a spell with mana value 2 or less from your hand without paying its mana cost.

Whenever you gain life, put two +1/+1 counters on Karlov of the Ghost Council.

, Remove six +1/+1 counters from Karlov of the Ghost Council: Exile target creature.

Tap an untapped snow land you control: Karplusan Giant gets +1/+1 until end of turn.

Cumulative upkeep—Flip a coin. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)

Whenever you win a coin flip, Karplusan Minotaur deals 1 damage to any target.

Whenever you lose a coin flip, Karplusan Minotaur deals 1 damage to any target of an opponent's choice.

: Karplusan Yeti deals damage equal to its power to target creature. That creature deals damage equal to its power to Karplusan Yeti.

Defender

As long as Karsus Depthguard's power is 5 or greater, it can attack as though it didn't have defender.

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)

Flying, vigilance, haste

Whenever you cast another spell that has convoke, scry 2, then draw a card.

Flying

When Kathari Bomber deals combat damage to a player, create two 1/1 red Goblin creature tokens and sacrifice Kathari Bomber.

Unearth (: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

When Kathril, Aspect Warper enters the battlefield, put a flying counter on any creature you control if a creature card in your graveyard has flying. Repeat this process for first strike, double strike, deathtouch, hexproof, indestructible, lifelink, menace, reach, trample, and vigilance. Then put a +1/+1 counter on Kathril for each counter put on a creature this way.

Kicker <I>(You may pay an additional </I><I> as you cast this spell.)</I>

Kavu Aggressor can't block.

If Kavu Aggressor was kicked, it enters the battlefield with a +1/+1 counter on it.

Kavu creatures have trample.

Whenever another Kavu enters the battlefield, put a +1/+1 counter on Kavu Monarch.

Kavu Runner has haste as long as no opponent controls a white or blue creature.

+1: Put a ghostform counter on up to one target nontoken creature. It gains "When this creature dies or is put into exile, return it to its owner's hand and create a 1/1 white Spirit creature token with flying."

−3: Exile target nonland permanent.

−7: You get an emblem with "At the beginning of your upkeep, you may cast a legendary spell from your hand, from your graveyard, or from among cards you own in exile without paying its mana cost."

+1: Creatures you control gain deathtouch until end of turn. Put a +1/+1 counter on up to one target creature token you control.

−2: Until end of turn, if one or more tokens would be created under your control, twice that many of those tokens are created instead.

−6: Exile all cards from all graveyards, then create a 1/1 white Spirit creature token with flying for each card exiled this way.

0: Exile CARDNAME haunting target creature for as long as that creature remains on the battlefield.

−1: You get an emblem with, "At the beginning of your upkeep, this emblem deals 3 damage to the owner of target haunted creature."

−2: You get an emblem with, "At the beginning of your upkeep, gain control of target haunted creature for as long as it remains haunted."

+1: Exile up to two target cards from a single graveyard. You gain 2 life if at least one creature card was exiled this way.

−1: Exile target nonland permanent with mana value 1 or less.

−5: Kaya, Orzhov Usurper deals damage to target player equal to the number of cards that player owns in exile and you gain that much life.

Enchant creature or planeswalker you control

When enchanted permanent dies or is put into exile, return that card to the battlefield under your control.

Destroy all creatures. You gain life equal to the number of creatures you controlled that were destroyed this way.

Flying

Whenever a creature an opponent controls is dealt damage, put a +1/+1 counter on Kazarov, Sengir Pureblood.

: Kazarov deals 2 damage to target creature.

Whenever a creature an opponent controls attacks, if you're the defending player, create a 3/3 red Ogre creature token unless that creature's controller pays .

: Attach target Equipment you control to Kazuul's Toll Collector. Activate only as a sorcery.

Whenever an opponent draws a card, if you control a red permanent, you may have Kederekt Parasite deal 1 damage to that player.

At the beginning of your upkeep, you and target opponent each reveal the top card of your library. You each lose life equal to the mana value of the card revealed by the other player. You each put the card you revealed into your hand.

: Keeper of Kookus gains protection from red until end of turn.

, : Choose target opponent who has at least two fewer creature cards in their graveyard than you do as you activate this ability. Destroy target nonblack creature that player controls.

Whenever Keeper of Tresserhorn attacks and isn't blocked, it assigns no combat damage this turn and defending player loses 2 life.

, Sacrifice two lands: Destroy target land.

Haste

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

When Keldon Champion enters the battlefield, it deals 3 damage to target player or planeswalker.

Enlist

Whenever Keldon Flamesage attacks, look at the top X cards of your library, where X is Keldon Flamesage's power. You may exile an instant or sorcery card with mana value X or less from among them. Put the rest on the bottom of your library in a random order. You may cast the exiled card without paying its mana cost.

Enchant creature

: Regenerate enchanted creature.

: Enchanted creature gets +1/+0 until end of turn.

: Enchanted creature gains trample until end of turn.

Kicker (You may pay an additional as you cast this spell.)

Haste

When Keldon Overseer enters the battlefield, if it was kicked, gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn.

Kicker (You may pay an additional as you cast this spell.)

When Keldon Strike Team enters the battlefield, if it was kicked, create two 1/1 white Soldier creature tokens.

As long as Keldon Strike Team entered the battlefield this turn, creatures you control have haste.